Method of and means for making index slips



June 8 1926.

J. C. LIGGETT METHOD OF AND MEANS FOR MAKING INDEX SLIPS Filed Oct. 21, 1922 j Inventor:

Q Joan aba'ggeii, b

Patented June 8, 1926.

UNITED STA JOHN (J. Lleen rr, or new YORK, N. nssrenonfr'o rosrmnnx eorrrnuv, Inc, or

BOSTON, MASSACHUSETTS, A CORP?)RATIGIN'v MASSAGHUSETTS.

mnrnon or AND MEANS son meme Inna): stirs,

Application filed October 21,1922. Serial n. 596,157., 1

This invention aims to provide a novel and improved method of and means tor mak ng index slips for indexes of the class in which a series of slips placed edge to edge occupy a frame in which they are adjustablyi and interchangeably mounted. v I

The invention will be best understood by reference to thefollowing description, when taken in connection with the accompanying drawings illustrative of one specific means by the aid of which the invention may. be

carried out. w

In the drawings: I p Fig. lis a side elevation of a machine for shaping the index slips Fig. 2 is a sectional view on line 2- 2 of Fig. 1; I

Fig.3 is a sectional view on line 3+3 ot' Fig. 1 I c Fig. 4 is a sectional view on line 44 of Fig.2;and i Fig. 5 is a sectional view of one of the index slips.

Referring to the drawings, 5 shows I an index slip 6, which is concave-convex transversely as well as longitudinally, thereby having a spring-like character which enables it to maintain itsplace in the index without danger of accidental displacement. One step in the method is to coat the paper, preferably on both sides, with a moisture and dirt-excluding coating, such as collodion, which can be applied before or after the data is applied to the paper. I prefer to apply the coating which,by the way, may be as thin as desirec before the data is applied. Herein, this is conveniently accomplished by placing the sheet in a bath of liquid collodion, and then drying the sheet. In practice, the coating is so thin that it is difiicult, if not altogether impossible, to detect the presence of the coating. The next step in the method is to apply to a sheet of paper of suitable dimensions and treated as above one or more names, or other desired data, by suitable means, such as a typewriter. Where a typewriter is employed for this purpose, it is most convenient to type the data vtor several slips, and afterwards to cut them. i

Having typed and cut the index slips, the next stepis to shape them by subjecting each slip to pressure to give it a concavo-convex formation, transversely as well as longitur linally. One crimvaraie '1t means, for. carry-v more information than mer ing out this step is a machine h-avinga pair of rollers 7 and 8, whose mating surfaces are given a shape corresponding to the de sired cross-sectional shape or the slip." In

mcst cases," willbede'sirable t'o-use a single -name' slip, such as that shown in F g.- 5,

but there may be intances where it will be desirable to provide a multiple slip having, v

say, twice or three time's'th'e Width of the single slip. Slips of the multiple type are usehilwhere it is desired toplaee on the fslip y'the name-and address To this end, the rollers 7 and 8,

as hereinshown, are provided one with a plurality of grooves 9', which are concave in cross-section, while the roller "8' is'provided with a corresponding number of. ridges 110 of convex "formation; 0t course, the "space between the 1 rollers willbe suitable to accommodate the desi'redthickness of paper.

' Her'eintherolle'rs are secured to shafts 11 and 12, which are journaled insuitable hearings resented by a frame 13. In the pres ent embodiment, the rollers are caused to 1 travel at the same peripheral speed by the erator; the other hand may be used to feed the slips to the rollers.

The slips are; conveniently guided to the rollers by a platen 19, presenting. a pair of lateral guides 20 and '21, one of which, herein the guide 21, 'inthe present embodimentis adjustable with reference to the guide 20 to permit the accommodationof slips of dif-' ferent widths. The adjustment is normally maintained conveniently by a wing-nut 22 and bolt 28, shown in Fig. 3. The longitudinal curvature is given to the slips by appropriate means, such as a fixed forming guide 24 (see Fig. 4), which is so. inclined as to deflect the slip from" the straight path which it would otherwise follow in passingthrough the rollers. In this way, the slip is conveniently curved lengthwise contemporaneously with the transverse curve. directions is accomplished in a minimum length of time. Q

There is another important step in, the

use of spur gears 14 and 15, securedtothe Thus, the shaping of the slip in both forming of the slip, which is yet tobe dethe slip while it is being formed, it is found that better results are obtained than when the slip is not heated, because the forming of the slip is more readily accomplished, and

I it retains the form better.

If desired, a further protective coating of collodion maybe applied to the index slips after the slips have been shaped, although in most cases the second coating is unnecessary, and this step may be omitted if desired. Whether applied before or after the application of the data, the coating prevents the slip from becoming soiled, aswell as protecting it from the entrance of moisture, which might impair its spring-like qualities. The addition ofv the coating has the effect of actually increasing the spring-like characteristic of the slip. The slip is now completed, and may be placed in the file.

Having thus described one method, and means for carrying out vthe method, but without limiting myself thereto, what I claim and desire by Letters Patent to secure is:

1. The art of making an index slip, which is characterized by printingcharacters on the slip, giving it a concavo-convex formation, and coating it with a protective material.

2. The ar't'of making an index slip, which is characterized by printingcharacters on the slip, giving it a concavo-convexformation. and coating it with a material which tends to preservesuch formation.

faces theslip to be shaped is passed, there to be curved transversely, and means for causing the slip to be curved longitudinally. v

6. In a machine for shaping index slips, the combination of cooperating shaping rollers, one having a convex surface and the other a concave surface, between which surfaces the slip to be shaped is passed, there to be curved transversely, and means for causing the slip to be curved longitudinally contemporaneously with the transverse curving.

7. In a machine for shaping index slips, the combination of cooperating shaping rollers, one having a convex surface and the other a concave surface, between which surfaces the slip to be shaped is passed, there to be curved transversely, and means for causing the slip to be curved longitudinal- 1y during its transit between said rollers.

8Q In a machine for shaping index slips,

the combination of cooperating shaping rollers, one having a convex surface andthe other a concave surface, between which surfaces the slip to be shaped is passed, there to be curved transversely, and means for causing the slip to be curved longitudinal ly, andengageable with the advancing strip forward of said rollers, to cause said slip to be curved longitudinally as it progresses.

In testimony whereof, I have signed my name to this specification.

JOHN G. LIGGETT. 

